Frequently Asked Questions

Q. Is it safe to use during pregnancy or while breastfeeding?
A. If you are pregnant or breastfeeding, it is important to seek the advice of a healthcare professional rather than making decisions on your own.  Consult with a doctor or pharmacist, confirm the safety, and choose the appropriate product.  Prioritizing health and safety is essential.

Q. Is it suitable for sensitive skin?
A. For individuals with sensitive skin or in a sensitive state, we strongly recommend conducting a patch test before use.  Additionally, if your skin is currently experiencing issues such as acne or irritation resulting in inflammation, please refrain from using the product.

Q. Does the product contain alcohol?
A. Yes, it contains a small amount of alcohol.  The overall amount of alcohol is very little, it has minimal impact on the skin.

Q. Does it contain fragrance?
Yes, some products may contain very small amount of fragrance.  Fragrance may be used in products to add scent or enhance the user experience, but typically, the amount used is very small.

Q. I have allergies, is it safe for me to use the product?
A. We recommend conducting a patch test before use.

Q.  What is the ingredient "natural human ceramides" that is contained in Yokosuka E.M.Club beauty products?
A. Natural Human Ceramides refers to a component discovered by Genuine R&D Co., Ltd. of Rohto Pharmaceutical Co., Ltd.  This component has successfully been materialized by Genuine R&D for the first time in the world and it has been patented. It is a type of ceramide purified from fermentation less.

Q. Are preservatives added?
A. For safety and quality assurance, we use the least minimum amount of preservatives.   If you have any concerns, we recommend conducting a patch test before using the product.

Q. I want to try the product containing natural human ceramides, but I'm worried if it will suit my skin.
A. While it is designed to be gentle on the skin with low irritation, we advise individuals with sensitive skin or those who are sensitive to conduct a patch test before use.  
Furthermore, if you have been instructed by your doctor regarding cosmetic usage,  please consult the doctor before using the product.

Q. I accidentally ingested the product (cosmetic). What should I do?
A.  Yokosuka E.M.Club Beauty cosmetics pose no significant danger if ingested or consumed accidentally in small quantities.  However, if you experience any unusual symptoms or have ingested a large quantity, we recommend seeking immediate medical attention. Please take the product with the package (which lists full ingredients), to the doctor.

Q. Are the ingredients in the "Purple Cera" series safe?"
A. The 'Purple Cera' series generally contains many ingredients that are purified from natural materials and they have a long history of being used in cosmetics.  Threfor  their safety is assured.  However, as there are different types of skin, thre may be cases where our products does not suit a certain skin type.  Please use accordingly based on your judgement.

Q. What is the expiration date of the skincare product?
A. If the product remains unopened, it can maintain its quality and properties for up to three years from the manufacturing date if stored in a cool, dry place away from direct sunlight and high temperatures or humidity.  However, we recommend using the product within one year from the date of delivery to achieve the best results.  Furthermore, we recommend using the product promptly after opening as there is a possibility of dust and bacteria contamination.  (If opened and exposed to air for a certain amount of time, there is a possibility that the color, scent, texture, etc., may change.  In such cases, please refrain from using the product.)
If you would like to inquire about the recommended usage period for unopened products you have on hand, please feel free to contact us.

Q. What is the best way to store skincare products?
A. Avoid storing in places prone to high temperatures or extreme temperature fluctuations.  Keep in a cool place away from direct sunlight and out of reach of infants and toddlers.  Use the product as soon as possible after opening.

Q. Where is the best place to store the product?  Please provide storage instructions.
A. Avoid direct sunlight, high temperatures, humidity, store in a place out of reach of infants and toddlers.  Please use the product as soon as possible after opening.
We do not recommend refrigerating the product.  Storing in a cool place is acceptable.

Q. Product containing natural human ceramides is recommended for who?
A. Products containing natural human-type ceramides are recommended for those seeking to strengthen skin barrier, moisturize, and achieve a radiant complexion. They are also suitable for individuals prioritizing anti-aging care, those looking for environmentally friendly products, and those who wish to experience salon-like effects at home.

Q. Please tell me the difference between natural human ceramides and human ceramides.
A. Natural human ceramides are purified from fermentation products, possessing the same structure as ceramides naturally present in human skin.
Seamlessly integrate with intercellular lipids and function effectively.  Moreover, natural human ceramides contain a variety of long and short molecular species.
On the other hand, many commercially available human ceramides are synthetic, with fewer and shorter molecular species compared to natural human ceramides.

Q. Can it be used in conjunction with other skincare products from different brands?
A. Yes, it is fine to use it in conjunction with products from other companies.
However, if any skin issues arise, it is recommended to discontinue use of the product and consult with a specialist.

Q. Can Yokosuka E.M. Club beauty skincare products be refrigerated and used during hot summer?
A. Please use at room temperature.  Skincare products contain various ingredients, and temperature fluctuations may affect their stability and effectiveness.
Especially high temperatures or extreme temperature changes may compromise the quality of the product.

Q. Please tell me the features of Purple Cera.
A. Purple sera combines highly antioxidant purple sweet potato shochu fermented mash extract with deeply moisturizing natural human ceramides, enhancing the skin's healthy barrier function and reducing signs of aging, offering promising skincare effects.  Another characteristic is the use of environmentally friendly ingredients.

Q. Is it safe to use Purple Cera on the body?
A. Generally, skincare products are primarily formulated for use on the facial area such as the face and neck, but they can also be used on the body without any issues.
As a general guideline for application, we recommend using the product up to the jawline, which marks the boundary between the face and the neck.

Q. Can skincare products be used by men?
A. Our cosmetics can be used by both men and women.

Q. What is the texture of Purple Cera?  Please describe what it feels like on the skin.
A. The artificial color of Purple cera is similar to the light purple color of purple sweet potatoes.  It is a creamy texture that is smooth and moist.  It incorporates a refreshing, penetrating sensation that permeates the stratum corneum of the skin, along with a pleasant moisturizing sensation experienced after penetration.  This unique formulation pursues both the functionality and comfort desired for the skin.

Q. How do you remove stains of the product clothing or beddin?
A. If it gets on clothing, promptly wipe it off and wash it immediately according to the detergent and washing method specified on the laundry care label attached to the garment.

Q. Can I dilute the remaining contents in the container with water and still use it until the last drop?
A. We do not recommend diluting and using with water as it may risk contamination by bacteria.

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